“…This phenomenon is usually observed when enzymes are covalently coupled to supports (Kennedy, Cabral, 1987). Similar results for immobilized trypsin and other proteases have also been reported, as for example, in the immobilization of trypsin on soap-free P(MMA-EA-AA) latex particles (Kang et al, 2005) and acrylic copolymers (Bryjak, Kolarz, 1998), in the immobilization of an extracellular proteinase from Thermus strain Rt41A in pore glass beads (Wilson et al, 1994) and in the immobilization of amyloglucosidase and invertase in polyvinyl alcohol (Uhlich et al, 1996).…”